The fact is he has not been seen recently.A. whatB. thatC. whyD. if

问题补充：

The fact is he has not been seen recently.

A. what

B. that

C. why

D. if

答案：

A. what

(答案→)B. that

C. why

D. if

解析：

这题考查表语从句的用法，表语从句中是完整的句子，不缺成分，用that引导，一般不省略。句意是：事实上最近都没看见他。选B。